Push-button.



W. W. BARCY. JR.

PUSH BUTTON. APPLICATION FRIED Mum. 1914.

1,1 28,744. Patented Feb. 16, 1915.

2 SHEETS-SHEET 1.

WITNESSES w IHVETITOR I. NABJ Q W. W. BARCY. JR.

PUSH BUTTON. APPLICATION FILED MAR.7,1914.

1,1 28,744. Patented Feb. 16, 1915.

2 SHEETS-SHEET 2.

WITNESSES w L0lmTvzlgwow QMN.W MM w 7 flTTORHEY UNITED STATES PATENT OFFICE.

WILLIAM w. BARCY. JR. or DETROIT. MICHIGAN. ASSIGNOR TOWIL BAR MANUFAC- TUBING COMPANY. or DETROIT. MICHIGAN, A CORPORATION OF MICHIGAN.

PUSH-BUTTON.

Application filed March 7.1914.

To all 1/771!!! '17- may (o/o'er:

Be it known that l. \Vinnmn \Y. Bauer, J12, a. citizen of the United States. residing at Detroit, county of \Vayne. State of Michigan. have invented a certain new and useful Improvement in Push-Buttons. and declare the following to be a full. clear, and exact description of the same. such as will enable others skilled in'the art to which it pertains to make and use the same, refer ence being had to the accompanying drawin Fig. 2.

ings. which form a part of this specification.

This invention relates to electric bell tiX- tures and has for its object a push button switch in which all the elements can be as sembled before the switch is applied to the wall.

In the drawin;Is,--Figure i. is a vertical section before as .mbling. Fig. 2. is a vertical section after the switch has been applied to the wall. Fig. fihis a plan view. Fig. i, is a plan view of a modified form. Fig. 5. is a vertical section of a modified form. The casing (I, of sheet metal is pressed into the proper shape by suitable. dies and comprises a bell-shaped portion which has its rim flaring out to form a flange b. The end oi this flange turned over to form a spacing ring (a the annular flange I) properly spaced from the wall of the. building, casement, or other support to which the switch is to be at tached. The binding posts 0 and are attached to a cross-strip f/ of insulating material. This ero...-strip r is bowed inward at the center so that the binding posts are held out of contact from the wall, as shown The binding post 6 carries the spring contact 72,, this contact fitting, over the inward end of the binding post and being held in place by the nut j. end of the binding; po t is in the form of a loop, the arm of which can be pushed into ontact with the binding post f by the. push button The resiliency of the spring contact l1. normally holds the push button projected outward'in the casing a as shown in Fig. 2.

The crossstrip g maybe attached to the casing a before the push button switch is applied to the wall. This is a matter of great convenience as the assembled boils may then be carried in the electricians pocket or in any other manner without re- ,quiring first the picking out of the parts The spacing ring keeps The tree Specification of Letters Patent. P t t F 1 1915 Serial No. 823.270.

and putting them together to apply to the wall. This assembly is effected in a very simple manner for the ends of the strip 9 are perforated and the spacing ring c has a pair of diametrically opposite integral ears Ir. These are perforated by having the metal cut and forced out at one side as shown in the drawings, forming prongs Perforations m are made in the annular flange directly opposite the perforations l in the ears. These perforations are made in the same manner and have similar pron These prongs fit into the. perforations in 51 6 ends of the cross strip 9 and when the cross strip 7 has been placed against the annular flange the ears L may be turned over, as shown in Fig. 2 and the prbngs l of the ears 0 slipped into the perforations of the strip. This firmly holds the strip in place so that the switch .is completely assembled. When it is applied to the wall, all that is necessary is to attach the wires n to the binding post and screw the casing to t o \i all by means of the screws 0.

In Figs. 4 and 5 asimilar form of construction is shown. except that in this case the switch casing a has an escutcheon p which is shaped by suitable dies so that the escutcheon is provided near the switch casinp with a boss (1. To this is riveted or screwed the cross-strip g. The boss 9 enables the cross-strip to be carried in a spaced relation with respect to the wall so that the binding screws are held out of contact with the wall to prevent moisture from following the wall down and short-circuiting the bell.

. lVhat I claim is:

1. A push button switch, having in combination, a casing, a cross strip of insulating material bowed at its center, said cross strip and casing being arranged so that the cross strip may be secured to the casing before the same is applied'to the Wall, binding posts carried by the bowed portion of the cross strip, a contact spring attached to one binding post, and a push button for forcing the contact spring into engagement with the other post.

A push-button switch,havingin combination. a casing, an annular flange at tho flaring end of the bell-like casing, a spacing ring continuing the annular flange, 2 pair of perforations provided with annular prongs on the end of the flange, and a pair-of ears integral with the spacing ring and provided forcing the contact spring into engagement 10 with perforations having prongs, a strip with the other binding post.

of insulating material having perforations In testimony whereof, I sign this specifi in its ends at which the prongs of the ancation in the presence of two witnesses.

nuiar flange and the prongs of the ears may be received when the ears are turned over, WILLIAM B 'a pair of binding posts carried by the in- Witnesses:

sulating strip, a contact spring attached to STUART O. BARNES, one binding post, and a push button for VIRGINIA C. SPRATT. 

